Classic Matti Hyvärinen ring with a glowing Spectrolite stone. Refined styling, the Spectrolite is the real focus of this ring. Under certain light, the ring glows. Circa 1976
Ring face is 3/8" in diameter Size 6.75, the band could be adjusted slightly larger Hallmarked "MJH, Made in Finland, Sirokoru, 925, Y7" Good vintage condition with some surface wear and original patina.